/**
 * 模拟构建jquery库
 * */
var $ = jquery = function () {
    return new jquery.fn.init();
};
jquery.fn = jquery.prototype = {
    init: function () {
        this.length = 0;
        this.test = function () {
            return this.length;
        };
        return this;
    },
    version: "1.0.0",
    size: function () {
        return this.length;
    }
}
jquery.fn.init.prototype = jquery.fn;
function l(o) {
    console.log(o);
}